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M8 and M20 using a new Riccardi .75 flattner/reducer, 1074j
M8 and M20 using a new Riccardi .75 flattner/reducer
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M8 and M20 using a new Riccardi .75 flattner/reducer

M8 and M20 using a new Riccardi .75 flattner/reducer, 1074j
M8 and M20 using a new Riccardi .75 flattner/reducer
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M8 and M20 using a new Riccardi .75 flattner/reducer

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Description

I've been on a quest for the "perfect" reducer for my various refractors and recently purchased a "small" Riccardi .75 reducer/flattener. I say small because it comes in two sizes and the small one is actually quite large as the thread is M63. I was able to test it out recently, and this image was the result. There was a bit of high cirrus now and then so it was hard to say how it did with bright blue stars, and there are some small halos present. There was also some eccentricity in one corner but other than that; the field was very flat and no significant vignetting (ASI071 camera). I didn't use flats or need to remove any corner gradients when processing. It took some time to find the right adapter combination to mate it to my AT106, which ended up adding another $150 or so to the cost. Overall, it's the closest to perfect I've found. 40x100s.

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M8 and M20 using a new Riccardi .75 flattner/reducer, 1074j